LEGRAND KEOR HPE 60 kVA Operating Manual page 1089

Installation and start-up of KEOR HPE UPS 60÷80 kVA
Installation et démarrage de l'ASI KEOR HPE 60÷80 kVA
Installazione e avviamento KEOR HPE UPS 60÷80 kVA
5.3 BASIC TROUBLESHOOTING
This paragraph provides the basic information if any problems occur during the start-up procedure. In
case the problem cannot be solved, contact the service department.
After closing RCB the LCD display is still blank
 Check the phase rotation of supply voltage.
 Make sure the input voltage and frequency are within tolerance.
 Check the rectifier protection fuses F1-F2-F3; they are inside the unit.
After step #1 the UPS stops the starting sequence and shows one or more alarm messages
 Check the alarms indicated on the display and remove their causes.
 Close RCB and try to restart the UPS.
After step #2 the unit shows the alarm A15 – Byp fault
 Make sure the switch SBCB is closed.
 Check the protection fuses of the static bypass switch; they are inside the unit.
 Check the phase rotation of the bypass voltage.
 Make sure voltage and frequency are within tolerance.
After step #3 the unit shows the alarm A7 – BCB open
 Make sure you have closed the battery circuit breaker; the circuit breaker or the fuse holder is
external to the UPS system.
 Check the battery fuses.
 Check the interconnection between the auxiliary contact of the battery circuit breaker (in the
external cabinet) and the terminals X10-1/2.
5.4 SHUT-DOWN PROCEDURE
No. ACTION
1 Open OCB
2 Open BCB
3 Open SBCB
4 Open RCB
5
LCD DISPLAY
A30 GENERAL ALARM
A30 GENERAL ALARM
A30 GENERAL ALARM
A30 GENERAL ALARM
BLANK
OPERATING CHECKS
The supply to the load is interrupted.
LED #7 off.
The battery is disconnected from the
rectifier. Led #4 red flashing.
The bypass supply is disconnected. LED
#2 off.
Rectifier and inverter shutdown.
End of shutdown procedure.
OMW07096 REV. E 73